Update doc example to use Table.read not io.ascii.read
Update doc example to use Table.read not io.ascii.read

saimn/astropy,bsipocz/astropy,pllim/astropy,stargaser/astropy,tbabej/astropy,tbabej/astropy,AustereCuriosity/astropy,stargaser/astropy,mhvk/astropy,DougBurke/astropy,lpsinger/astropy,tbabej/astropy,mhvk/astropy,kelle/astropy,stargaser/astropy,dhomeier/astropy,saimn/astropy,astropy/astropy,AustereCuriosity/astropy,funbaker/astropy,kelle/astropy,aleksandr-bakanov/astropy,joergdietrich/astropy,StuartLittlefair/astropy,stargaser/astropy,larrybradley/astropy,astropy/astropy,larrybradley/astropy,dhomeier/astropy,kelle/astropy,mhvk/astropy,funbaker/astropy,joergdietrich/astropy,StuartLittlefair/astropy,tbabej/astropy,aleksandr-bakanov/astropy,MSeifert04/astropy,lpsinger/astropy,lpsinger/astropy,joergdietrich/astropy,astropy/astropy,astropy/astropy,astropy/astropy,lpsinger/astropy,funbaker/astropy,bsipocz/astropy,kelle/astropy,pllim/astropy,lpsinger/astropy,tbabej/astropy,pllim/astropy,joergdietrich/astropy,larrybradley/astropy,MSeifert04/astropy,pllim/astropy,aleksandr-bakanov/astropy,dhomeier/astropy,AustereCuriosity/astropy,mhvk/astropy,saimn/astropy,kelle/astropy,pllim/astropy,larrybradley/astropy,mhvk/astropy,StuartLittlefair/astropy,DougBurke/astropy,funbaker/astropy,saimn/astropy,StuartLittlefair/astropy,MSeifert04/astropy,DougBurke/astropy,StuartLittlefair/astropy,AustereCuriosity/astropy,larrybradley/astropy,dhomeier/astropy,dhomeier/astropy,DougBurke/astropy,saimn/astropy,aleksandr-bakanov/astropy,MSeifert04/astropy,AustereCuriosity/astropy,bsipocz/astropy,joergdietrich/astropy,bsipocz/astropy